Glutathione
Human ResearchGlutathione
The body's master antioxidant, a tripeptide found in every cell. Researched for immune support, detoxification, liver health, and anti-aging.
Dose
Oral: 250-1000 mg; IV/SubQ: 200-2000 mg
Route
IV infusion, SubQ injection, Oral, Nebulized
Cycle
Variable, often ongoing for chronic conditions or 4-12 weeks for acute support
Storage
Lyophilized powder vial: store sealed at 2-8°C protected from light; -20°C for long-term storage. The powder is far more stable than solution because glutathione oxidises readily.
What is Glutathione?
Glutathione (GSH) is a ubiquitous tripeptide present in nearly all cells of the human body, recognized as the body's 'master antioxidant'. It plays a critical role in detoxifying xenobiotics and endogenous compounds, maintaining cellular redox balance, and supporting immune function. Research investigates its potential applications in various health conditions due to its multifaceted biological roles. Exogenous administration, particularly intravenous, is commonly explored to augment intracellular glutathione levels in contexts where endogenous synthesis may be compromised or inadequate.
Key Benefits
- Powerful antioxidant
- Liver detoxification
- Immune enhancement
- Skin brightening
- Mitochondrial protection
- Anti-inflammatory
Mechanism of Action
- Neutralizes reactive oxygen species
- Supports phase II liver detoxification
- Recycles other antioxidants (Vitamins C and E)
- Supports immune cell function
Best For
- Antioxidant research
- Liver health research
- Immune support
- Skin health
Body Systems
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Molecular Information
Molecular weight
307.32 g/mol
Length
3
Type
Tripeptide
Amino acid sequence
GSH (Gamma-L-Glutamyl-L-Cysteinylglycine)
Consists of Glutamic acid, Cysteine, and Glycine, with a gamma peptide linkage between glutamate and cysteine.
Pharmacokinetics
Time to peak
Oral: 1-3 hours; IV: minutes
Half-life
10 h
Time to clear
Within 24 hours
Varies significantly based on form and administration route. Data for exogenous glutathione bioavailability and half-life are complex and context-dependent.
Research Indications
Enhancement of Immune Cell Function
Research indicates glutathione supports the proliferation and differentiation of lymphocytes and enhances the cytotoxic activity of natural killer (NK) cells.
Antiviral Defense
Studies suggest glutathione plays a role in modulating viral replication and immune response during viral infections by reducing oxidative stress.
Research Protocols
| Goal | Dose | Frequency | Route |
|---|---|---|---|
| General Antioxidant Support / Anti-Aging | 500-1000 mg | Daily | Oral or Subcutaneous (1-2 times/week) |
| Detoxification Support (e.g., heavy metals, chemical exposure) | 600-2000 mg | 1-3 times per week | Intravenous or Subcutaneous |
| Immune System Modulation | 250-500 mg | Daily | Oral |
| Liver Support (e.g., NAFLD, elevated liver enzymes) | 300-600 mg | Daily (oral) or 1-2 times/week (IV/SubQ) | Oral, Intravenous, or Subcutaneous |
| Skin Brightening | 500-1000 mg | Daily (oral) or 1-2 times/week (IV) | Oral or Intravenous |
Oral administration is commonly discussed for daily supplementation, often with food to improve tolerance. IV and subcutaneous protocols are typically administered by a healthcare professional and may follow specific clinical guidelines.
Peptide Interactions
- Monitor Combination
Chemotherapeutic Agents (e.g., Cisplatin, Doxorubicin)
Research has yielded mixed results; glutathione may protect healthy cells from chemotherapy-induced damage but could theoretically reduce efficacy against cancer cells by protecting them too. Close monitoring and medical consultation are crucial.
- Synergistic
N-Acetyl Cysteine (NAC)
NAC is a precursor to glutathione and research suggests co-administration can enhance intracellular glutathione synthesis and levels, offering synergistic antioxidant and detoxification benefits.
- Synergistic
Vitamin C (Ascorbic Acid)
Vitamin C helps regenerate oxidized glutathione (GSSG) back to its reduced, active form (GSH), thereby extending its antioxidant capacity. Often co-administered in research protocols.
- Synergistic
Selenium
Selenium is a critical cofactor for glutathione peroxidase, an enzyme that utilizes glutathione to neutralize reactive oxygen species. Their combined use is commonly researched for enhanced antioxidant defense.
- Compatible
Alcohol
Glutathione is depleted by alcohol metabolism; supplementation may help replenish liver glutathione stores and mitigate alcohol-induced oxidative stress, as indicated in some research.
- Use Caution
Nitric Oxide Donors
High levels of glutathione can potentially affect nitric oxide bioavailability and signaling pathways. While not directly contraindicated, monitoring is advised in research contexts exploring cardiovascular health.
How to Reconstitute
- 1Verify the integrity of the glutathione vial and diluent vial (if separate).
- 2Prepare injection site with an alcohol swab (e.g., top of vial).
- 3Draw an appropriate volume of sterile bacteriostatic or sterile water for injection into a sterile syringe.
- 4Inject the diluent into the glutathione vial, aiming for the side of the vial to prevent frothing.
- 5Gently swirl the vial until the powder is fully dissolved. Do not shake vigorously.
- 6Inspect the solution for clarity and absence of particulate matter before drawing up for administration.
What to Expect
- Weeks 1-2: Subtle improvements in energy or general well-being might be noted, particularly with higher doses or parenteral administration.
- Weeks 3-4: Individuals researching for detoxification may start to notice improvements in symptoms related to liver function or oxidative stress.
- Weeks 5-8: More pronounced effects on skin appearance (e.g., brightness) or immune response may become apparent with consistent use.
- Weeks 9-12: Sustained benefits in targeted research areas such as mitochondrial health or anti-aging markers may be observed.
- Beyond 12 weeks: Long-term research protocols suggest continued benefits, though individual responses can vary widely.
Side Effects & Safety
| Effect | Frequency | Severity |
|---|---|---|
| Zinc depletion with long-term use | With chronic high dose | Mild |
| Rare allergic reactions (IV) | Rare | Moderate |
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Open CalculatorPeptides discussed here are for research purposes only. Nothing on this page is medical advice. Always consult a qualified professional before making health decisions.